4x 2 9 2x 3 July 8, 2019 16 32 64 128 4x 2 9 2x 3 x 4 0 4x 6 2 9 2x 3 Lim 4x 2 9 2x 3 4x 2 6x 9 )( 2x 3 4x 2 9 =( x 5 )( 2x 3 5x 2 4x 9 )-( 2x 2 3x 1 4x 4 5x 2 7x 9 )/( 2x 3 7 4x 3 2 9 2x 3 4x 1 2 =- 9 2x 2x 2 3x 9 4x 2 9 4x 2 9 x 2x 3 4x 2y =- 2 2x 3y 9 2x 9 2 x 4x 31 9 4x 2 1 4 2x 8 3 4x 2 9 x 2x 3 )= 0